The stars came out in force to celebrate the book’s launch, including host (and Mandy’s BFF of 22 years), Jennifer Aniston. “Mandy brought yoga into my life. I’m excited for you to get to experience her, too!” Aniston told us. “This workout will challenge your body and mind.” The key to success, though? “Set aside the time to take care of yourself,” said Aniston, who is also the spokesperson for Aveeno skincare.

Also on hand, besides amazing KIND snacks (that the SELF staff can’t get enough of)? Courteney Cox, who admits that while she goes in and out of practicing yoga. There was also Kate Beckinsale, who says she sees Mandy daily, and while she “doesn’t love exercising, [she] loves the 10-minute relaxation period at the end of Mandy’s sessions.”

Regardless of how much or how little you practice, Mandy Ingber stresses that patience is key. “Be grateful for what you already have,” she told us. “Set aside the time to take care of yourself, too.” With killer yoga moves like these, we’re going to start right away!